Brake-shoe mold



J. 5. THQMPSQN BRAKE 1m mow Filed Jul 37 20, 1923 spgglioeaics filed July o,-

"i lshor. l. other object of the invention is to proviso simple extol novel moons tor so"- ;oehcling the reinforcing heel: is the mold ty preparatory to closing the mold will -v e operation.

the scoon'iganymg drawings l have illustrated a. selected emhodzznent of the mion sol referring; thereto, th 1 e .lohgltoolnslly sectional View much of a metal mold as is my to understand my invention.

' 1 transverse sectional View on Fig, l.

the clrawings, 3 represents l and l the metal cope of e or t a cavity 5 for 2i broke ice. The invention can he solcptcol "to unchilleel or chilled broke shoes and in the -sccompsnyi drawings, to illustrate the invention is not to rcstrlct the some, I

shown the mold cavity Villl-S forn'iecl sect'ons fl soil 6 of refractory materiel which will prevent the metal of the drag oml cope from saving a chilling ellcct upon the shoe costing:

In the drawings, each of the sections is shown extending throughout the length and width of the molcl cavity as a desirable oi structioh, but the sects-ions may he made otherwise whenever required.

'ljo facilitate the preparation of the mold [for the casting operation it is desirable to provide simple means for securing in tho hiolcl cavity the reinforcing buck to he emhwlclel in me shoe casting, and for this so 1 @IOVhlB spaced openings '7 prefes on opposite siclcs of the t ansthe mold cavity exteocllop; rough the cope. The openings I eratively narrow and are preferztl or greater wicll'hthan the Milli-LE.

1 san 59:60-

Width of the molol cavity. Porous cores 8 are prepared to fit in the openings 7 and; Wires 9 are omhstlclecl in these cores encl project beyond the lower ends thereof to enter the mold cavity and engage the reinforcing local: 10. The encls of the wires are twisted together at 11 or otherwise engsgeil with the lmcl: to hohl the hack snugly against "the top Wall of the mold cavity. ll. iinl it convenient to make the Wires in loop form and provide a cross bar 12 on the cops to engage the loops to prevent lhe Wires from losing dislodged when the ends are thus twislecl together. The attaching-lug 13 zlllil the core i l for forming the opening therein are supported on the reinforcing book, so that tho Wires by engogiog the reinforcing hack suspenclthis back end the log and the core for forming the opening in the lug in proper position in the mold for the casting operation. The porous cores permit the escape of gases from the mold cavity. The openings 7 may he variously clisposerl es requirecl for diferent types and sizes of shoes sncl inst/coo. of making all the walls of the mold cavity refractory, to produce uochilled shoe, ll may leave portions of the metal Walls of the mold cavity loose on chill the casting, as desired. The pouring'gate 15 is preferably located at one cool off the molcl cavity, but it may be: otherwise locetetl if "found desirslfie. While my invention is perticw -larly adapted for l mold having a motel drag and a metal cope, it may-he useol with molds of other hincls with satisfactory results.

My invention can he employerl for mslo ing castings other than brake shoes, soil ll consider myself entitledto make all such changes in the form, construction and-co rangemcnt of ports as may be necessary or desirable for this purpose, and for making (liflercnt kinds, shapes and sizes of hrslto shoes, which fairly fell Within the scope of l he following claims.

I clsim-- l l. A pcriiisnent mold for making castings, comprising a drag and a cope having a mold cavity therein, said cope having spaced openings thcrethi'ough communicating with said cavity, porous cores in said openings, and Wires embedded in said cores for sum pending a member Within the moltl cm'ity lobe embedded in the casting.

2. A permanent mold for making costings,

comprising a drag and a cope having a mold cavity therein, said cope having spaced openings communicating with said cavity, porous cores in'said openings,'and means embedded in said eores'and projecting into said cavity for suspending a member in the mold cavity to be embedded in the casting.

3. A permanent mold for making castings,

comprising a drag and a cope having a moldcavity therein, sald cope having an opening extending therethrough and con'm'lunicating with the mold cavity and elongated in cross section.

4. A permanent mold for making castings, comprising a drag and a cope having a mold cavity therein, said cope having spaced openings extending therethrough and transversely across the mold cavity and communicating therewith, and means arranged in said openings for suspending a reinforcing member Within the mold cavity.

5. A permanent mold for making castings, comprising a drag and a cope having a mold cavity therein, said cope having spaced narrow openings extending therethrough and communicating with said cavity, porous cores in said openings, and means embedded in said cores for suspending a member with-'- in the mold cavity.

6. permanent mold for making castings,

comprising a drag and a cope having a mold cavity therein, said cope having a pair of spaced narrow openings extending transversely therethrough and communicating with the mold cavity, porous cores in said openings, Wires embedded in said cores for suspending a member within'the mold cavity, and means to prevent dislodgement of the Wires.

7. A permanent mold for making castings, comprising a'drag and a cope having a mold cavity therein, said cope having spaced narrow transverse openings extending therethrough and communicating with the mold cavity, porous cores in said openings, looped Wires embedded in said cores and having their ends engaged with a member to suspend said member in the mold cavity, and a support on the cope and engaged with said \vn-es.

, 8. A permanent mold for maxing castings, comprising a drag and a cope having a mold cavity provided with refractory Walls, said cope having spaced openings therethrough communicating with said cavity, and means arranged in said openings for suspending a member Within the mold cavity to be embedded in the casting.

JAMES S. THOMPSON. 

